This stock pots can cook nearly anything inside its wide base and high walls. Their aluminum stock pot cover is the perfect complement to their 20 and 24-quart heavy-duty aluminum stock pots. It will also match the 5-quart saute pans. Constructed of heavy 13-gauge, reinforced aluminum and specifically designed for high-volume use, 2-mm thickness, this NSF-listed stock pot cover will perform wonderfully even under the most grueling of kitchen conditions. Inside diameter is 11-1/2-inch. Measures 12-5/8-inch diameter.